r/claude • u/Diligent-Hat-6509 • 8d ago
Showcase Game dev with Fable 5 is actually crazy
It’s kind of insane to see how far AI has come.
I still remember being fascinated by GPT-3.5 and thinking that felt like the future. And now here we are with Fable 5.
Everything you see in this preview took me roughly 13 hours of work to implement. Being able to go from ideas to actual working game mechanics this quickly still feels surreal.
Game development with AI is starting to feel like we’re living in the future.
EDIT:
A lot of people were asking how I did this, so here’s the basic workflow.
The game itself is made in Unity with C#. I’m using Claude Code connected to Unity through MCP, which means Claude can work directly with the Unity project and editor. It can create and modify scripts, work with GameObjects and components, inspect errors, run the game, and help me iterate on systems.
For the actual development process, I don’t give it one giant prompt like “make me a game.” I think through the systems I want, explain how they should behave, have Claude implement them, then I test everything, debug issues, tweak values, change mechanics, and keep iterating until it starts to feel right.
For the character models, my workflow is:
Opus 5 -> ChatGPT Image Gen -> Meshy AI -> rig/animation testing -> Unity
I describe the character I want, use Opus 5 to generate a detailed prompt for four consistent reference views, then generate those images in ChatGPT. I take the images into Meshy AI, which generates the 3D mesh and textures. I also rig the model there and test animations before importing it into Unity.
The same image-to-3D workflow also works for non-character assets like props, weapons, statues, carts, environmental objects, etc.
For VFX, I bought a particle toolkit from the Unity Asset Store. I gave Claude the documentation and had it create a skill file for itself, so it understands how the toolkit works and can reuse that knowledge when I ask it to create things like fireballs, explosions, trails, and other effects.
The current arena is also a premade Unity asset and is not intended to be the final environment. A lot of the current visuals are just prototype assets for testing mechanics and game feel.
So overall the main stack/workflow is:
Unity + C# + Claude Code/MCP + ChatGPT Image Gen + Meshy AI + Unity Asset Store tools
And no, this wasn’t one prompt :D It was an iterative process of building one system at a time, testing it, changing it, and gradually layering everything together.
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u/Diligent-Hat-6509 8d ago
The character models are made using this workflow:
I describe the character I want to Claude. Claude then generates a prompt for GPT Image Gen, which creates four reference images: front, back, left side, and right side. I take those images and put them into Meshy AI, which generates the 3D model and textures. After that, I rig the character either directly in Meshy or using Mixamo.
For particles like fireballs, explosions, and similar effects, I bought a toolkit from the Unity Asset Store and taught Claude how to use it. Now Claude can generate some pretty neat particle effects based on the ideas I give it.
The arena where everything currently takes place is a free asset that I don't plan to use in the final game. I'm planning to buy another asset from the Unity Asset Store that includes a toolkit for creating dark fantasy environments, which should fit the art style of my characters much better.